ZikaHack 2016: A digital disease detection competition. - Dillon C. Adam; Jitendra Jonnagaddala; Daniel Han-Chen; Sean Batongbacal; Luan Almeida; Jing Z. Zhu; Jenny J. Yang; Jumail M. Mundekkat; Steven Badman; Abrar Chughtai; C. Raina MacIntyre (DDDSM@IJCNLP, 2017)